Root canal handpiece



FIG. 1 is top perspective view of a root canal handpiece showing my newdesign;

FIG. 2 is a left side perspective view thereof, the right side viewbeing symmetrical thereto;

FIG. 3 is a bottom perspective view thereof;

FIG. 4 is a front perspective view thereof, along line 4--4 of FIG. 2;and,

FIG. 5 is a rear perspective view thereof, along line 5--5 of FIG. 2.

The ornamental design for a root canal handpiece, as shown anddescribed.